Firstly apologies for proper newbie post but im clutching at straws here!!I've had my car in for a remap and the ECU was flashed successfully and the car wouldn't start or communicate through the OBD, but would on a bench rig - the original file has now been flashed back on and the car is running as it was.

its a good company and i trust them but i have been reading about "checksums" etc and tried downloading the me7check tool but its not working for me and to be honest i can read all the information and get a basic knowledge but if someone who has the knowledge to take the file and check it for me to see if they are missing anything.

If some kind sole is able to help me out please let me know and i can hopefully get the file sent over.